N.H. Rev. Stat. Ann. § 236:110

Notwithstanding any provision of this subdivision, the commissioner of transportation or his representative is authorized to collect and dispose of individual recycling motor vehicles from private lands adjacent to and in view of any federal aid highway, provided that owners agree to such collection and disposal and further agree that in the future no other recycling vehicles will be placed in the view of the traveled way, and providing that federal funds are or become available for this purpose.